Answer:
45ft by 22ft
Step-by-step explanation:
perimeter is 2L+2W =134ft
The coach says that 378=4L+9W
We can rearrange the first equation to get L=67-W, then solve by substitution.
378=4(67-W)+9W=268+5W
110=5W so W=22
L=67-W and W=22 so
L=67-22=44
Therefore the dimensions are 22 by 45